bantu kak butuh bgt ini,pke caranya ya
∠BOC = 116°
Penjelasan dengan langkah-langkah :
› Nilai x
(3x + 5)° + (2x - 10)° = 180°
3x + 2x + 5 - 10 = 180°
5x - 5 = 180°
5x = 185°
x = ¹⁸⁵⁄₅
x = 37
› Besar ∠BOC
∠BOC = 180° - (2x - 10)°
= 180° - (2(37) - 10)°
= 180° - (74 - 10)°
= 180° - 64°
= 116°
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